I need a diagram for the 1978 Jeep Wagoneer steering column

SOURCE: 1989 Jeep Grand Wagoneer with very squirrly steering

If your steering box is in the same place mine is, the adjustment is hidden under the radiator shroud.Generally this will remove a bit of steering play but it has to be done carefully to avoid binding.
What you really need to do is to check the entire front end for any play. Remember that "acceptable" play in one component when added to "acceptable" play in several other components = unacceptable overall play.All bushings, joints etc must be checked. Shocks need to be in good condition as well. If everything is in good condition, find a good alignment shop and ask them if it's possible to add a few degrees of positive caster to your present settings. If you have adjustment for this it will help to keep it going straight at speed. (may make turns a bit harder but with p/s it should not be noticed.
good luck

SOURCE: replace ignition in steering column 92 jeep laredo

dealer has better picture they can print out for you give them a call

SOURCE: How do I remove the ignition lock cylinder from

here are the instruction the first set are the instruction on how to remove the turn signal switch as you will need them to remove the ignition

Removal & Installataion of turn signal switch

1. Disconnect the negative battery cable.
   
2. Remove the steering wheel.
   
3. Loosen the anti-theft cover retaining screws on 1976 models and lift the cover from the steering column. It is not necessary to completely remove these screws.
   
4. Depress the lockplate and pry the round wire snapring from the steering shaft groove. A lockplate compressor tool is available for compressing the lockplate.
   
5. Remove the lockplate, directional signal canceling cam, upper bearing preload spring, and thrust washer from the steering shaft.
   
6. Move the directional signal actuating lever to the right turn position and remove the lever.
   
7. Depress the hazard warning light switch and remove the button by turning it counterclockwise.
   
8. Remove the directional signal wiring harness connector block from its mounting bracket on the right side of the lower column.
   
9. On vehicles equipped with an automatic transmission, use a stiff wire, such as a paper clip, to depress the lock tab which retains the shift quadrant light wire in the connector block.
   
10. Remove the directional signal switch retaining screws and pull the switch and wiring harness from the steering column.
    
11. Guide the wiring harness of the new switch into position and carefully align the switch assembly. make sure that the actuating lever pivot is correctly aligned and seated in the upper housing pivot boss prior to installing the retaining screws.
    
12. Install the directional signal lever and actuate the directional signal switch to assure correct operation.
    
13. Place the thrust washer, spring, and directional signal canceling cam on the upper end of the steering shaft.
    
14. Align the lockplate splines with the steering shaft splines and place the lockplate in position with the directional signal canceling cam shaft protruding through the dogleg opening in the lockplate.
    
15. Install the snapring.
    
16. Install the anti-theft cover.
    
17. Install the steering wheel and connect the negative battery cable.
    
18. Check the operation of the turn signal switch.
    

1. Disconnect the battery ground cable.
   
2. Remove the turn signal switch as described earlier in this section. You don't have to remove the switch completely, just set it aside.
   
3. Insert the key. Position the key as follows.
   
   • 1976-83: With manual transmission, put it in the ON position; with automatic, put it in OFF/LOCK.
     
   • 1984-86: Two detent positions, clockwise, beyond OFF/LOCK.
     

1. Working through the slot next to the turn signal switch mounting boss, use a thin screwdriver to release the lock cylinder.
   
2. To install, insert the key in the new lock cylinder. Hold the sleeve and turn the key clockwise until it stops. Align the cylinder retaining tab with the housing slot and insert the cylinder. Push the cylinder in, rotate to engage, then push in until the retaining tab engages the housing groove.
   
3. Complete the procedure in the reverse of removal.
   

SOURCE: Steering column diagram needed for 1989 Jeep Cherokee

If you intend to keep the vehicle long term, I would suggest you invest in a Haynes Manual, That is worth its weight in gold, for this and any other project..
Regards,DT

SOURCE: I need a steering column wiring diagram for a 1979 cj5

Black horn ground
lt.blue left front turn
blue right front turn
brown hazard power
purple turn signal power
yellow left rear turn
green right rear turn
white brake light input